ENH: MultiResolutionGaussianSmoothingPyramidImageFilter support 3D slice #1388
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When a 3D image has a thickness of 1 (pixel) along one of the dimensions (`imageSize[i] == 1`), just avoided Gaussian smoothing along that dimension. Related to Christian Tischer - "Elastix questions related to 2D => 3D registration", https://forum.image.sc/t/elastix-questions-related-to-2d-3d-registration/117821
N-Dekker
commented
Dec 15, 2025
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| // Update smoother pointer array for this dimension | ||
| if (factors[idim] == 0.0) | ||
| if (factors[idim] == 0.0 || imageSize[idim] == 1) |
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@stefanklein @mstaring What do you think of this approach? Just skipping any dimension which has only 1 pixel thickness in that direction...?
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Don't forget to do the same on the generic pyramid.
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When a 3D image has a thickness of 1 (pixel) along one of the dimensions (
imageSize[i] == 1), just avoided Gaussian smoothing along that dimension.Related to Christian Tischer - Elastix questions related to 2D => 3D registration